Temperature Humidity Data Logger Digital Hygrometer Thermometer Ssn-20

SSN-22 INTRODUCTION
The SSN-20 is a compact and reliable temperature and humidity data logger designed for monitoring and recording environmental conditions in various applications. It stores readings directly on the device and can be easily connected to a PC via USB for setup, data retrieval, and analysis using the DGraph software. The logger features LED indicators for alarm status, battery level, and operational mode. A button on the housing allows users to start logging or acknowledge alarms when they are active.

To begin, simply plug the data logger into a USB port on your computer. Before use, install the USB driver and DGraph software, which are included on a CD that comes with the product. These tools are compatible with Windows XP, Vista, 7, and 8 (both 32-bit and 64-bit versions). With DGraph, you can configure sampling intervals (from 10 seconds to 12 hours), set high/low alarm thresholds, and manage start/stop methods. Once logged, data can be viewed, analyzed, printed, or exported to multiple file formats such as TXT, XLS, CSV, BMP, and JPG.

For advanced use, users can set access passwords, name individual channels, enable or disable specific channels, input calibration data, disable LED indicators to conserve power, and choose between different sampling modes like Instant, Average, Maximum, and Minimum. This makes the SSN-20 ideal for professional and industrial environments where precise and continuous monitoring is essential.

APPLICATIONS
The SSN-20 is widely used for monitoring and verifying temperature and humidity-sensitive goods, equipment, and areas. Common applications include cold chain logistics, refrigeration systems, transportation, HVAC, food and pharmaceutical storage, and warehouse monitoring.

FEATURES
- Portable, accurate, and cost-effective design
- Direct USB interface for communication with PCs
- User-friendly DGraph software for control and data management
- Each unit has a unique serial number for tracking
- Password protection for secure access
- LED indicators for alarm, status, and battery alerts
- Multiple start logging options: Immediate, Button, or Scheduled
- Replaceable lithium battery ensures data retention even when power is low
- Two-point calibration for each channel
- Customizable graphs and units for enhanced flexibility
- Channel naming and enabling/disabling capabilities

SPECIFICATIONS
Measurement Range: -35 to 80°C (-31 to 176°F); 0 to 100% RH
Accuracy (Typ.): ±0.3°C (±0.5°F); ±3% RH
Resolution (Typ.): 0.1°C (0.2°F); 0.1% RH
Memory Capacity: 64 KB (Total 32,000 Readings)
Sample Rate: User-selectable from every 10 seconds to every 12 hours
PC Software: DGraph software and USB driver required (Included on CD)
Power Supply: User-replaceable 1/2AA 3.6V lithium battery, 1200mAh
Battery Life: Approximately 3 years at 1-minute sample rate
Dimensions: 120mm × 37mm × 23mm (4.8" × 1.5" × 0.9")
Case Material & Weight: ABS; approximately 80 grams (2.82 oz)
SSN-22 includes an LCD display, while SSN-20 does not.

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